AO4292E MOSFET N-Channel 100V 8A Equivalent & Substitute Parts

Part Overview

The AO4292E is an N-channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 100V drain-to-source voltage and 8A continuous drain current at 25°C. The device is packaged in 8-SOIC surface mount configuration with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). This part is currently in active product status with 81,100 pieces available in inventory. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory management, or performance optimization within compatible electrical and mechanical parameters.

Substiute Parts

AO4292E

Alpha & Omega Semiconductor Inc.In Stock: 81148AO4292E Datasheet

Current PartRFQ

FDS86141

onsemiIn Stock: 7422FDS86141 Datasheet

MFR RecommendedRFQ

SI4056DY-T1-GE3

Vishay SiliconixIn Stock: 20196SI4056DY-T1-GE3 Datasheet

MFR RecommendedRFQ

SI4896DY-T1-GE3

Vishay SiliconixIn Stock: 4667SI4896DY-T1-GE3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AO4292E are qualified based on the following criteria:

Electrical Compatibility Parameters:

• Drain to Source Voltage (Vdss): 80V minimum to 100V (allows operation within or above the main part's voltage rating)
• Current - Continuous Drain (Id) @ 25°C: 6.7A minimum (maintains or exceeds the 8A requirement within thermal and application constraints)
• FET Type: N-Channel (functional equivalence)
• Technology: MOSFET (Metal Oxide) (functional equivalence)

Mechanical Compatibility Parameters:

• Package / Case: 8-SOIC (0.154", 3.90mm Width) (identical footprint for direct PCB substitution)
• Mounting Type: Surface Mount (identical assembly method)

Compliance & Regulatory Parameters:

• RoHS Status: ROHS3 Compliant (environmental compliance equivalence)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (handling and storage equivalence)
• Product Status: Active (ongoing manufacturer support)

The three substitute parts listed below meet these criteria and are qualified for direct substitution in applications where the AO4292E is specified.

Parameter Comparison

Engineering Selection Recommendations

FDS86141 (onsemi PowerTrench®)

The FDS86141 is qualified as a direct substitute for the AO4292E. Both devices share identical 100V Vdss rating and 8-SOIC package footprint. The FDS86141 provides 7A continuous drain current, which is within 87.5% of the AO4292E specification. This part is active in production status with ROHS3 compliance and MSL 1 rating. The FDS86141 is suitable for applications where the 1A current reduction is acceptable within circuit design margins.

SI4056DY-T1-GE3 (Vishay Siliconix TrenchFET®)

The SI4056DY-T1-GE3 is qualified as a direct substitute for the AO4292E. Both devices share identical 100V Vdss rating and 8-SOIC package footprint. The SI4056DY-T1-GE3 provides 11.1A continuous drain current (measured at Tc), which exceeds the AO4292E specification by 38.75%. This part is active in production status with ROHS3 compliance and MSL 1 rating. The SI4056DY-T1-GE3 is suitable for applications requiring enhanced current handling capability or thermal performance within the same package envelope.

SI4896DY-T1-GE3 (Vishay Siliconix TrenchFET®)

The SI4896DY-T1-GE3 is qualified as a substitute for the AO4292E with voltage derating consideration. This device provides 80V Vdss, which is 20% lower than the AO4292E 100V rating. The SI4896DY-T1-GE3 provides 6.7A continuous drain current, which is within 83.75% of the AO4292E specification. Both devices share identical 8-SOIC package footprint. This part is active in production status with ROHS3 compliance and MSL 1 rating. The SI4896DY-T1-GE3 is suitable for applications where the maximum operating voltage does not exceed 80V and where the lower on-resistance (16.5 mOhm) provides thermal or efficiency benefits.

Frequently Asked Questions (FAQ)

Q: Can the FDS86141 be used as a direct replacement for the AO4292E?

A: Yes. The FDS86141 shares the same 100V Vdss rating, 8-SOIC package footprint, and surface mount configuration. The 7A continuous drain current specification is 87.5% of the AO4292E 8A rating. Substitution is valid when circuit design margins accommodate the 1A reduction in continuous current capacity.

Q: What is the primary difference between the SI4056DY-T1-GE3 and the AO4292E?

A: Both devices are rated for 100V Vdss and use the 8-SOIC package. The SI4056DY-T1-GE3 provides higher continuous drain current (11.1A at Tc versus 8A at Ta for the AO4292E), offering improved thermal performance and current handling within the same footprint.

Q: Is the SI4896DY-T1-GE3 suitable for all AO4292E applications?

A: The SI4896DY-T1-GE3 is suitable for applications where the maximum drain-to-source voltage does not exceed 80V. The device provides 6.7A continuous drain current and identical 8-SOIC package compatibility. Applications requiring the full 100V rating must use the FDS86141 or SI4056DY-T1-GE3.

Q: Do all substitute parts maintain the same moisture sensitivity level as the AO4292E?

A: Yes. The AO4292E, FDS86141, SI4056DY-T1-GE3, and SI4896DY-T1-GE3 all carry MSL 1 (Unlimited) rating, indicating identical handling and storage requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The AO4292E, FDS86141, SI4056DY-T1-GE3, and SI4896DY-T1-GE3 are all ROHS3 compliant, meeting identical environmental and regulatory standards.

Q: Can the substitute parts be soldered using the same reflow profile as the AO4292E?

A: All substitute parts use identical 8-SOIC surface mount packaging with the same 0.154" (3.90mm) width. Standard reflow soldering processes for 8-SOIC packages apply to all four devices. Consult individual manufacturer datasheets for specific thermal profile recommendations.

Q: What is the on-resistance difference between the AO4292E and substitute parts?

A: The SI4896DY-T1-GE3 provides the lowest on-resistance at 16.5 mOhm (@ 10A, 10V). The FDS86141 and SI4056DY-T1-GE3 both specify 23 mOhm maximum on-resistance. Lower on-resistance reduces power dissipation and heat generation in switching applications.

Q: Are all parts currently in active production status?

A: Yes. The AO4292E, FDS86141, SI4056DY-T1-GE3, and SI4896DY-T1-GE3 are all listed as active products with ongoing manufacturer support and availability.